centos man page for ares_fds

ARES_FDS(3)						     Library Functions Manual						       ARES_FDS(3)

NAME
       ares_fds - Get file descriptors to select on for name service

SYNOPSIS
       #include <ares.h>

       int ares_fds(ares_channel channel, fd_set *read_fds,
       fd_set *write_fds)

DESCRIPTION
       The  ares_fds function retrieves the set of file descriptors which the calling application should select on for reading and writing for the
       processing of name service queries pending on the name service channel identified by channel.  File descriptors will be	set  in  the  file
       descriptor  sets  pointed  to by read_fds and write_fds as appropriate.	File descriptors already set in read_fds and write_fds will remain
       set; initialization of the file descriptor sets (using FD_ZERO) is the responsibility of the caller.

RETURN VALUES
       ares_fds returns one greater than the number of the highest socket set in either read_fds or write_fds.	If no queries are active, ares_fds
       will return 0.

SEE ALSO
       ares_timeout(3), ares_process(3)

AUTHOR
       Greg Hudson, MIT Information Systems
       Copyright 1998 by the Massachusetts Institute of Technology.

								   23 July 1998 						       ARES_FDS(3)